MONOGRAPH OF THE NORTH AMERICAN PROCTOTRYPID.E. 427 



loiiiicr tliau wide. Eyes ratlier small, oval, coarsely facetted. Mandi- 

 bles and i)ali)i pale brown. Antenna} inserted on a frontal pronunence; 

 in 9 lli-Jointed, pale brown, terminating in a black, 4-jointed club; the 

 scape i^rojects far above the ocelli, above dusky, beneath pale; pedicel 

 stouter and slightly longer than the first funiclar joint; the funiclar 

 joints slender, cylindric, the joints very slightly shortened to club; the 

 club joints large, quadrately oval, the last oblong; in the $ 14-jointed, 

 longer thau the body, pale brown, the flagellar joints nodose-pedicellate 

 »vith whorls of hairs; the pedicel is about half the length of the first 

 flagellar joint, the following to the last shorter, the last pointed, fusi- 

 form. Scutellum with a large rounded fovea at base. TegulfB honey- 

 yellow. Wings hyaline, with long cilia?. Legs, including coxai, reddish- 

 yellow, the tip of the i)osterior tibi.e slightly dusky, the coxa? more or 

 less pubescent, the legs sparsely pilose. Abdomen ovate, scarcely 

 longer than the thorax, subdepressed, the second segment occupying 

 most of its surface, the following segments very short, the third in 9 

 being longer than the others. 



HABiTAT.^Sacramento County, Cal. 



Types in iS^ational Museum. 



Described from many specimens, reared in September, 1890, by 

 Albert Koebele, from Dipterous puparia found in the ground. 



A specimen of the puparium, sent with the i3arasite, shows it to be- 

 long to the large family Muscidw. 



Diapria abdominalis Say. 



Psilus aidominalis Say, Lee. Ed. Say's Works, ii, p. 729. 

 T'latjimi.'ichiis dhdomhialis Ashni., Can. Eut., xix, ]>. 195. 

 Diapria abdominalis Cv., Syu. Hym.,p.2r>l. 



AntenniT? olavate, as long as the body ; Idack, alulomen whitish. 



Inhabits Indiana. 



Body black; antenna' broken at the second joint; iirst joint one-foixrth the whole 

 length, whitish; second joint obcouic; terminal joint ovate-fusiforni, longer than 

 the three preceding joints together; wings very deeply ciliated; abdomen whitish, 

 particularly at base; tarsi white. 



Length about one-fourth of an inch. (Say.) 



Diapria obtixsa Say. 



rsilits ohtusus Say, Lee. Ed. Say's Works, i, p. 383. 

 Gale.siis ohtiisits Ashni., Can. Ent., xix, p. 195. 

 Diapria ohfiisa Cr., Syn. Hyni., p. 251. 



Black; feet Avhitish, thighs 1)lack in tlie middle. 



Inhabits Indiana. 



Body black, polished; antennje fuscous; anterior wings white and very obtuse, 

 finely ciliated; ciliaj A'ery short; feet whitish; thighs black, white at base and tip; 

 coxie black. 



Length nearly one-twentieth of an inch. (Say.) 



